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https://hdl.handle.net/10316/107227
Title: | Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at s=13 TeV with the ATLAS detector | Authors: | Santos, S. P. Amor dos Galhardo, B. Veloso, F. Wolters, H. ATLAS Collaboration |
Issue Date: | 2019 | Publisher: | Elsevier | Serial title, monograph or event: | Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics | Volume: | 795 | Abstract: | A search is performed for localised excesses in dijet mass distributions of low-dijet-mass events produced in association with a high transverse energy photon. The search uses up to 79.8fb−1of LHC proton–proton collisions collected by the ATLAS experiment at a centre-of-mass energy of 13TeV during 2015–2017. Two variants are presented: one which makes no jet flavour requirements and one which requires both jets to be tagged as b-jets. The observed mass distributions are consistent with multi-jet processes in the Standard Model. The data are used to set upper limits on the production cross-section for a benchmark Z model and, separately, on generic Gaussian-shape contributions to the mass distributions, extending the current ATLAS constraints on dijet resonances to the mass range between 225 and 1100GeV. | URI: | https://hdl.handle.net/10316/107227 | DOI: | 10.1016/j.physletb.2019.03.067 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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Search for low-mass resonances decaying into two jets and produced in association with a photon using pp collisions at s=13 TeV with the ATLAS detector.pdf | 1.49 MB | Adobe PDF | View/Open |
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